Nursing bottle



etented dan. l5, 1924.

GEORG-E L. DUNKELBERGER, OF BILLINGS, MONTANA.

NURSING BOTTLE.

Application led September 29, i921.

To all whom at may concern Be it known that I, Grenen L. DUNKnL- nnnenn, a citizen of the United States, residing at Billings, in the county of Yellowstone and State ot Montana, have invented certain new and useful Improvements in Nursing Bottles, @t which the following is a speciiication.

The objectot this invention is to provide a nursing bottle which will be practically indestructible; Will be light so that it may he easily handled by an infant, and will be of such a simple construction that it may be produced at a low cost and easily kept in a sanitary condition. The invention is illustrated in the accompanying` drawings and Will be hereinafter tully set forth.

In the drawings` Figure l is a diametrical longitudinal section of a nursing bottle embodying the in- Yention;

Fig. 2 is a horizontal section on the line 2-2 oi Fig. l.

In carrying out my invention, I employ a cylindrical receptacle or body, indicated by the reference numeral l, which is ot uniform diameter1 Jfrom end to end, one end being closed, as shown at 2, and the other end being open and constitutinga mouth. This cylindrical body is constructed of an inner wall 3 and an outer Wall if ot' aluminum or some similar light and cheap metal which may be easily given the desired form. The walls 3 and d are united at the mouth of the bottle. as shown at 5, and nolled or otherwise shaped to form a bead 6 having a flat upper seating tace. Between the walls of aluminum, I place a filling 7, preferably ot' granulated cork, so that the bottle will be insulated trom the action of heat and may retain its contents at an even temperature for a considerable period. the bottle, I mold a rib 8 haring branches 9 disposed circumferentially ot the bottle and constituting graduations, markers l0 being fOrmed in a similar manner upon the inner surface of the bottle opposite some ot' the graduations so as to readily niark the quantity of milk or other feed placed in the bottle. I also provide a cap consisting of an 0n the inner wall ofV Serial NO. 504,220.

outer plate ll of aluminum and an `inner iller 12 of cork or other yieldable material adapted to bear against the flat upper seating face of the bead 6 as shown. The cap is provided With a depending rim 13 which is somewhat resilient so that it may be pushed down over the bead 6 and will intimately engage the bead so as to retain the cap in position upon the bottle. The mouth of the bottle Will thus be eifectually closed and access of hot air or other deleterious vapors or agents will be prevented. When the bottle is to be used, the cap, ot course, Will be removed and any of the Well-known Wide-base nursing nipples on the market may be fitted upon the mouth of the bottle.

It Will be readily noted that my invention provides a ver)7 durable bottle which may be easily cleaned and Which may be produced at a lovv cost. The bottle will be very light in Weight so that it may be handled easily by an infant and will not, ot course, readily break when the infant tosses it aside.

Having thus described the invention, what is claimed as new is:

A nursing bottle consisting ot a cylindrical metallic container having a mouth ot' the same diameter as the bottom or the container and provided with inner and outer Walls ot aluminum intimately united at said mouth and being otherwise tree throughout their entire extent, the outer Wall having an eX- vternal bead surrounding the mouth et the container and provided with a fiat upper seating face and the inner Wall having a lon- `gitudinal rib -formed thereon With branch ribs extending' circumferentially therefrom and constituting a scale ot measurements visible from the inside of the container only, a heat insulating medium illing the entirespace between said Wails. and a sealing cap having a yieldable filler adapted to rest upon the at upper seating tace oiE the head and entirely covering the mouth of the container and having a depending rim embracing the bead on the outer Wall ot said container.

In testimony whereof I aiiiX my signature.

GEORGE L. DUNKELBERGER. [n s.) 

